<http://schema.org/keywords>
"\u901F\u3055\u3068\u99C6\u3051\u5F15\u304D\u3067\uFF13\uFF27\u7D61\u3080"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.asahi.com/articles/ASJ3N45RNJ3NUTQP011.html?ref=rss>